Question

a student is pushing a 50kg cart, with a force of 600N. another student measures the speed of the cart, and finds that the cart is only accelerating at 3/m2. how much friction must be acting on the cart.(hint draw a diagram showing the cart, and the two forces acting on it.

Answer 1

Answer:

frictional force acting on the cart 450 N.

Given:

mass of cart = 50 kg

acceleration = 3 $\frac{m}{s^{2} }$

To find:

Frictional force = ?

Formula used:

F - $F_{k}$ = 600 N

F = ma

$F_{k}$ = frictional force

Solution:

Force on the block is given by,

F - $F_{k}$ = 600 N

F = ma

$F_{k}$ = frictional force

$F_{k}$ = 600 - m a

$F_{k}$ = 600 - (50 × 3)

$F_{k}$ = 600- 150

$F_{k}$ = 450 N

According to the given data the frictional force acting on the cart 450 N.